Metalwork rooftop Lizhu Chen | George Gizas | Ketsia Joseph | Marufa Mannan | Caroll Patino
Existing materials Name 1000HZ NRC Walls: Metal .10 .10 Seats: Concrete .03 .05
The rooftop auditorium contains concrete seating area and metal walls that is coded with yellow paint which gives a cheerful touch to the space. The space of the rooftop is all open without roof which is not acoustically efficient for people to hear. Another fact with the wall is that it is slanted that is open towards the sky and has an overhang at the front. The shape of the space is open fan that is efficient for viewing the stage.
proposed materials
Our team is proposing an enclosed space with stepped wood panel roof for acoustics that are hang from the truss. We chose wood that is reflective which used for the ceiling and part of the wall. Towards the back of the auditorium wall will be covered with an absorptive material that will absorb the sound. The stage is right under the overhang with an opaque glass that encloses the stage but leaves the space open for access to the stairs. The slanted walls are kept the way it was and it transits to straight wall for reflecting the sound. The exterior geometry of the auditorium is an enclosed box.
Name 1000HZ NRC Reflective Walls and ceiling: Wood .10 .10 Absorptive Wall: Sonex Valueline Foam 1.21
Process Sketches
Existing Condition Ray Diagram
Plan of structures: truss and 2’x 2’ wood panels.
Plan and Ray Diagram
Ray diagram for the plan
Proposed: sections and Ray Diagram
ARMSTRONG PRELUDE 15/16" EXPOSED GRID
METALWORKS VECTOR METALWORKS
PANEL
VECTOR PANEL 1/4"
9/16" 1-11/16"
15/16"
Detail Connections
Details
Absorptive
Materials
Reflective
S
FLOOR
SEATING
ɲ
A
Concrete Steel
1067 268 178
0.02 0.1 0.1
21.34 26.8 17.8
In/Outdoor Carpet Mats
310
0.2
62
FLOOR
298 sq ft
1067 sq ft
11 sq ft
SIDEWALLS
268 sq ft
Reflective Panels
BACKWALL
298
0.1
532
0.1
29.8 29.8 53.2 53.2
Absorptive Panels Absorptive Panels
565 285
1.02 1.02
576.3 290.7
Reflective Panels
2113
0.1
211.3
SIDEWALLS
298 sq ft
532 sq ft
CEILING BACKWALL
FRONT WALL Opaque Glass
167
0.1
16.7
268 sq ft
565 sq ft
AIR Volume parts
Total Volume
20340 3877(2) 3029(2) 34152 34.152
285 sq ft
CEILING 0.9 TOTAL
30.74 1419.68 sabins 268 sq ft
RT = .05 (VOLUME) A +.9V
Calculations
0.05
34152 1419.68
=
1.202 seconds
Credit Page Lizhu Chen
-----------------------------------> Sketches, booklet layout, ray diagrams, editing CAD drawings
George Gizas
-----------------------------------> Sketches, 3D model
Ketsia Joseph
-----------------------------------> Sketches, section drawings, reflective material research
Marufa Mannan -----------------------------------> Sketches, absorptive material research Caroll Patino
Credits
-----------------------------------> Sketches, calculations